Bubble-fountain for dental cuspidors.



T. W. ROSS.

BUBBLElFOUNTAlN FOR DENTAL GUSPIDORS.

APPLICATXON FILED JULY 31,1916.

Patented Jan. 14, 1919;.

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BUBBJLE-FOUNTATN FOE DENTAL CUSPIIDORS.

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Specification of Letters Patent.

Patented Jan. 1 1., 1919.

Application filed July 31, 1916. Serial No. 112,233.

To all whom it may concern:

Be it known that T, TnoMAs W. Ross, a citizen of the United States of America, residing at the city of St. Louis, State of Missouri, United States of America, have invented a certain new and useful Bubble- Fountain for Dental Cuspidors, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a bubble fountain for dental cuspidors, and has for its object the production of a fountain which can be readily attached to an ordinary dental cuspidor, and which may be adjusted to different sized cuspidors, and which can also be swung out of use when desired.

Another object of my invention is to provide means for locking the valve of the fountain in open position.

In the accompanying drawings, which illustrate one form of fountain made in accordance with my invention, Figure 1 is a side elevation showing the fountain attached to a cuspidor; Fig. 2 is partly a top plane view and partly a sectional view, showing the fountain detached, and Fig. 3 is an enlarged sectional view of a detail of construction.

Like marks of reference refer to similar parts in the several views of the drawings.

5 represents the bowl of a dental cuspidor. The bowl is supplied with water through a pipe 6, having the usual tangential dis charge 7. The pipe 6 is carried from the bowl 5 by means of a cross-piece 8. All of these parts may be of any usual. and wellknown construction. 9 is a flexible supply pipe, which is usually attached to the lower end of the pipe 6. Tu using my attachment, however, the pipe 9 is attached to a l 10 forming part of a union, the nut 11 of which is threaded to the lower end of the pipe 6. Tu this way the horizontal portion 12 of the T may be turned in any direction, for purposes to be hereinafter described. The hori zontal portion 12 of the T has carried upon it a pivotal. joint 13. This allows the passage of water, and at the same time allows the pivotal movement of the part 14:- This part 14: carries an lL-shaped pipe 15 on the upper end of which is the bubble fountain proper 17, having a discharge 18 adapted to be discharged into the bowl 5 when the parts are in normal position. By means of the union 11 and the pivotal joint 13 the fountain 17 may be adjusted to bowls of different sizes, inasmuch as the angle of the parts 12 may be varied with reference to the bowl 5 and the l..-shaped pipe 15 swung on the pivotal joint 13. The fountain 17 is controlled by a valve 19 and a valve stem 20, normally held in closed position by means of a coil spring 21, shown in Fig. 2. In order to lock the valve in open position so that the fountain may be used by children or other patients who are unable to operate the valve, I provide the valve casing with a slot 22, as shown in Fig. 3, and form upon the valve stem 20, a lug 23. which normally slides in the slot 22. When, however, it is desired to lock the fountain in open position the stem 20 is pushed in a turn to one-quarter of a revolution, as shown, to bring the lug 23 into the position shown in the dotted lines in Fig. 3. The stem will thus be maintained in its inner position, and, consequently, the valve 19 will be locked in openposition.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. The combination with a dental. cuspidor of a supply pipe therefor, a union car ried by said supply pipe and provided with a laterally projecting part adapted to be adjusted around the axis of the supply pipe, and a bubble fountain vertically pivoted in said projecting part outside of the supply p pe.

2. The combination with a dental cuspidor of a supply pipe therefor, a ll" secured in said supply pipe intermediate of its length so that its projecting end may be adjusted around the axis of the supply pipe, and a bubble fountain vertically pivoted in said projecting end at a point outside of the supply pipe.

Tn testimony whereof I have hereunto set my hand and aflixed my seal.

rnonns w. Ross. [L. 8.

Copies of this patent may be obtained for five cents each, by addressing the Gominissioner of! Patents, Washington, ll. U. 

